Hi allI have solved the last issue with client object. And here is the new one again... It timed out in this function call:instance = nt.servers.create( "coreos_%s" % args.cluster_name, args.image_id, args.flavor_id, min_count=n, max_count=n, security_groups=["default", "coreos"], userdata=open('cloud-config_%s.yaml' % public, 'r'), key_name=args.ssh_key_name, nics=[{"net-id": args.net_id}] )What I can think of is the key does not match but I guess there should be a corresponding error message indicating the wrong key. I tried to extract the ndsisl.pub from both my own service_test_key_zeo.pem and nds.pem which Kacper gave me but they did not work.Here are the full error message and all my env variables. Thanks.Lengyues-MacBook-Air:~ LY$ python startup_ndslabs.py --ip 141.142.204.184 --total-vms 3 --total-public 1 --name labs --ssh-key ~/ndsisl.pub --env-file ~/production.env --region NCSA --net-id 165265ee-d257-43d7-b3b7-e579cd749ed4 --image-id fdc6aa22-4913-45bc-83ad-77f6ae218348 --dbvol-id e5b37fd8-1d7f-49f3-95bb-6c3127ee7199 --icatvol-id b89e0b67-9e93-4ab1-8e45-919a61c17e66 --moinmoin-id 1b74658a-9638-4db6-b7f3-1c2211f3776b --flavor-id 48ff5b63-73fc-4d35-93ec-3839ab0d0de7/Users/LY/novaclient/v1_1/__init__.py:30: UserWarning: Module novaclient.v1_1 is deprecated (taken as a basis for novaclient.v2). The preferable way to get client class or object you can find in novaclient.client module. warnings.warn("Module novaclient.v1_1 is deprecated (taken as a basis for " region=NCSA,elastic_ip=true,public_ip=$public_ipv4,mounts=false etcd token is https://discovery.etcd.io/d9e844d66e86425ae9754d3585433889 Creating 1 ---------------------------ALL my env varibales------------------------------------ Namespace(cluster_name='labs', dbvol_id='e5b37fd8-1d7f-49f3-95bb-6c3127ee7199', desired_ip='141.142.204.184', env_file='/Users/LY/production.env', etcd_token=u'https://discovery.etcd.io/d9e844d66e86425ae9754d3585433889', flavor_id='48ff5b63-73fc-4d35-93ec-3839ab0d0de7', icatvol_id='b89e0b67-9e93-4ab1-8e45-919a61c17e66', image_id='fdc6aa22-4913-45bc-83ad-77f6ae218348', moinmoinvol_id='1b74658a-9638-4db6-b7f3-1c2211f3776b', net_id='165265ee-d257-43d7-b3b7-e579cd749ed4', openstack_pass='CLy83585518', openstack_tenant='NDS', openstack_url='http://10.10.236.1:5000/v2.0', openstack_user='lchen95', region='NCSA', ssh_key='/Users/LY/ndsisl.pub', ssh_key_name='core', total_public=1, total_vms=3) Traceback (most recent call last): File "startup_ndslabs.py", line 186, in <module> nics=[{"net-id": args.net_id}] File "/Users/LY/novaclient/v2/servers.py", line 926, in create **boot_kwargs) File "/Users/LY/novaclient/v2/servers.py", line 540, in _boot return_raw=return_raw, **kwargs) File "/Users/LY/novaclient/base.py", line 161, in _create _resp, body = self.api.client.post(url, body=body) File "/Users/LY/novaclient/client.py", line 454, in post return self._cs_request(url, 'POST', **kwargs) File "/Users/LY/novaclient/client.py", line 407, in _cs_request self.authenticate() File "/Users/LY/novaclient/client.py", line 560, in authenticate auth_url = self._v2_auth(auth_url) File "/Users/LY/novaclient/client.py", line 651, in _v2_auth return self._authenticate(url, body) File "/Users/LY/novaclient/client.py", line 664, in _authenticate **kwargs) File "/Users/LY/novaclient/client.py", line 402, in _time_request resp, body = self.request(url, method, **kwargs) File "/Users/LY/novaclient/client.py", line 373, in request **kwargs) File "/Users/LY/requests/api.py", line 50, in request response = session.request(method=method, url="" **kwargs) File "/Users/LY/requests/sessions.py", line 465, in request resp = self.send(prep, **send_kwargs) File "/Users/LY/requests/sessions.py", line 573, in send r = adapter.send(request, **kwargs) File "/Users/LY/requests/adapters.py", line 415, in send raise ConnectionError(err, request=request) requests.exceptions.ConnectionError: ('Connection aborted.', error(60, 'Operation timed out'))